Kilometers to Yards Converter

The kilometer is exactly 1,000 meters, the unit of length in the International System used for distances between places rather than across a room. It is written km and is the basis of the metric road network.

Road signs, speed limits, odometers and race distances use kilometers in most of the world. Maps quote distances in kilometers, and athletic events such as the marathon are described in kilometers.

One kilometer equals 0.621371 miles, an exact conversion from the definition of the mile as 1,609.344 meters. The displayed figure is rounded, so converting kilometers to miles and back may shift the last digit.

Mixing meters and kilometers is the usual error: a walking route given as 4,000 meters is four kilometers, not forty. A kilometer is also a length unit, so square kilometers measure area.

Kilometers and miles both measure road distance, while meters measure shorter spans inside the same journey. Treating a mile figure as kilometers understates the distance by about a third, and mixing the two within one route confuses every later step.

The yard is exactly 0.9144 meters, three feet or thirty-six inches. It is a defined multiple of the meter, not an independent standard. Its value was fixed by the same international agreement that defined the foot and the inch.

Fabric, carpet and some flooring are still sold by the yard, and the chain and furlong used in land and horse racing are built from yards. American football is measured in yards.

Conversions run through the exact metric value, so a yard in meters is exactly 0.9144 and in centimeters exactly 91.44. Printed results are rounded, which can alter the final digit on a conversion there and back.

A yard is not a meter, though the two are close enough that a rough estimate will look plausible on fabric. Buyers who order yards and measure in meters can come up short.

A yard is three feet, a little less than a meter. Fabric is sold in yards in some markets and in meters in others, so a price per yard and a price per meter are not comparable, differing by about nine percent.